What is the key distinction between quality control (QC) and quality assurance (QA) on a construction project?
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A
QA requires third-party testing labs; QC can only use in-house inspectors
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B
QC is performed by the owner; QA is performed by the contractor
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C
QC focuses on inspecting work during execution; QA focuses on the processes and systems that prevent defects
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D
There is no practical difference between QC and QA in construction